Allen-Bradley 1746-NI16I

The Allen-Bradley 1746-NI16I is a high-density, 16-channel analog input module for the SLC 500 system. Since you’re looking at the 1746-A13 chassis, this is exactly the kind of module that fills up those slots in data-heavy industrial setups!

Here are the key technical details you’ll need for your listing or technical verification:

⚙️ Technical Specifications

• Input Channels: 16 High-Density Analog Inputs (Current-only).

• Signal Range: 0 to 20 mA or 4 to 20 mA (selectable).

• Resolution: 16-bit (very precise for monitoring pressure, flow, or temperature sensors).

• Isolation: Backplane-to-input and channel-to-channel isolation to prevent electrical noise.

• Power Consumption: 125 mA at 5V DC and 100 mA at 24V DC from the chassis backplane.

🛠️ Strategic Advantage

• High Density: Because it handles 16 signals in a single slot, it’s a space-saver. This makes it a high-demand item for marine control panels where space is tight.

• Marine & Process Apps: These are frequently used in oil and gas, water treatment, and shipboard automation due to the isolated current inputs.

📉 Market Status & Value

• Lifecycle: Like the chassis, this is a Legacy/Discontinued product.

• Surplus Value: Because it is a “high-density” module (NI16 vs the standard NI4 or NI8), it generally commands a higher price in the surplus market.

• Condition Matters: For 16-channel modules, buyers always look for the terminal block. If yours has the original 1746-RT25G terminal block attached, it’s worth significantly more!